1. Principle of an electric motor:
An electric motor operates based on the interaction between a current-carrying conductor and a magnetic field. This interaction produces a force that causes the conductor to rotate.
2. Conversion of energy:
In an electric motor, electrical energy is supplied to the coil in the form of current. This current creates a magnetic field that interacts with the external magnetic field, causing mechanical rotation.
Thus, the electric motor converts electrical energy into mechanical energy, which is used to perform mechanical work, such as rotating a fan or driving a machine.
3. Other conversions:
While some energy may be lost as heat due to resistance in the coil (resulting in some thermal energy), the primary conversion is from electrical energy to mechanical energy.